This is a personal view and thus subjective.
The apartment of Serene is to plain; white walls, white tiles, mostly white furniture, a white wall of the next building as view.
It is my belief that some pictures on the wall, carpets on the floor, here and there some artificial green plants/flowers, a floor lamp can make a place more agreeable.
Serene place has none of them, there is a mirror on the floor( I was told it was impossible to put it on the wall) .
Maybe OK for a few days, I stayed a month, it wasn't enjoyable.
Sure there must be some who like this spartan style.